Improvement in clock striking mechanisms



A. SCHMIDT.

CLOCK-STRIKING MECHANISM.

No. 171,583. Patented Dec. 28, 1875.

N.PE|'ER$, FHOTDLITHOGRAPNER. WASVIINGTON. D C

UNITED STATES PATENT OFFICE.

ALBERT SCHMIDT, OF BROOKLYN, NEW YORK.

IMPROVEMENT IN CLOCK STRlKiNG MECHANISMS.

Specification forming part of Letters Patent No. 171,583, dated December28, 1875; application filed December 1, 1875.

To all'whom it may concern:

Be it known that I, ALBERT SCHMIDT, of

Brooklyn, in the county of Kings and State warning. Fig. 3 shows thesame when released.

Similar letters indicate corresponding parts.

This invention consists in the combination of -a stop-pin secured in oneof the wheels or arbors of the hand-movement with the stoppin of thestriking-movement of a clock, and with a single rock-shaft, from whichextend the releasing-lever, the stop-hook, the camplate lever, and thecounting-wheel lever, so that the construction of the clock issimplified, and that between, the time of warning and the time ofstriking the power of the spring of the striking-movement acts on thehand-movement in the direction in which the hands move.

In the drawing, the letter A designates the arbor of the minutehand,which receives its motion from the ordinary clock-movement, and whichrevolves in the direction of the arrow marked near it in the severalfigures. From this arbor extends a pin, a, which acts on thereleasing-lever I) of thestriking-movement. This lever extends from arock-shaft, c, and from the same rock-shaft also extend the stop-hook d,the cam-plate lever c, and the counting-wheel leverf. The stop-pin g issecured in the wheel h, which receives its motion from the spring orweight of the strikingmovement. The cam-plate 7s and thecounting-wheelt' are of the ordinary construction, and they form partsof the striking-movement, the parts of which are moved in the directionof the arrows marked thereon in the several figures.

In the arbor A, or in any of the wheels connected to this arbor, issecured a pin, j, which forms the stop for the striking-movement betweenthe time of warning and striking.

When the striking-movement is at rest the stop-pin g of the wheel hrests against the hook d. (See Fig. 1.) As the arbor A revolves, the pin(0 comes in contact with the releasing-lever b, and by its action onthis lever the rock-shaft c is turned and the hook at is raised, so asto release the stop pin 9, and allow the wheel h to make a partialrevolution until the pin 9 is caught by the pin j. (See Fig. 2.) Thismotion is what is termed warning. At the same time the cam-platev levere and the counting-wheel lever f are both raised, so that thestriking-movement will be free to move as soon as the pin j releases thestoppin g.

By referring to Fig. 2 it will be seen that during that portion of therevolution of the arbor A, which is required to release the stoppin g,this pin bears on the pin j, so that the motive power of thestriking-movement acts on the arbor A in the same direction in whichthis arbor is caused to move by the 'main clock-movement, and theuniform motion of the hands is not interfered with, while in clocks asheretofore constructed the stop-pin 9, between the time of warning andstriking, acts on the arbor A in a direction opposite to its motion, andtherefore the correct motion of the clock is disturbed.

As soon as the pin j releases the stop-pin g, (see Fig. 3,) thestriking-movement is free to move, and the number of strokes of thehammer is determined by the counting-wheel t, in the ordinary manner.

What I claim as new, and desire to secure by Letters Patent, is-- 1. Inthe striking-movement of a clock, the combination of a pin, j, securedin one of the arbors or wheels of the hand-movement, with the stop-ping, the releasing-pin a, and with levers b d e f, substantially as shownand described, whereby the motive power of the strikirig-movement,between the time of warning and striking, acts on the hand-movement inthe direction of the motion of the hands.

2. In the striking-movement of a clock, the combination of the levers bd e f, all emanating from one and the same rock-shaft c, with the pins aj g and wheels or plates h k i, all constructed and operatingsubstantially as herein set forth.

In testimony that I claim the foregoingI have hereunto set my hand andseal.

ALBERT SCHMIDT.

Witnesses:

JOHN J OGHUM, W. HAUFF.

